Pulley.



No. 7o5,|29. Patented July 22,- I902.

w-.-E. PENN. r

' PULLEY.

plication filed Oct. 9, 1901.)

(lo Model.)

I EEicE.

UNITED STATES PATENT WILLIAM E. PENN, OF LAKEMILLS, WISCONSIN, ASSIGNORTO F. B. FARGO AND COMPANY, OF LAKEMILLS, WISCONSIN, A CORPORATION OFVIS- CONSIN.

P U L L EY SPECIFICATION forming part of Letters Patent No. 705,129,dated July 22, 1902.

Application filed October 19, 1901. Serial No. 79,202. (No model.)

T (0Z5 whom it m y COW/087%: cylindrical metal bushings D D areprovided, Be it known that I, WILLIAM E. PENN, rewhich fit into thelongitudinal axial recesses siding at Lakemills, in the county ofJefieror channels in the cross-pieces C and form son and State ofWisconsin, have invented a metal'walls in the cross-pieces about a cen-55 new and useful Improvement in Pulleys, of tral axial aperture adaptedto receive the which the following is a description, refershaft or arbortherethrough on which the pulence being had to the accompanying drawleyis to be secured. These semicylindrical ings, which are a part of thisspecification. metal bushings are prepared of a common The object of myinvention is to provide an and constant size adapted to receive therein,60 1o improved construction adapted for readily with more or lessintervening space, the shaft and securely fastening pulleys to shafts oror arbor. The amount of this space between arbors. the shaft or arborand the interior surface of The invention is especially adapted to bethe 'metal bushing will of course depend on employed with those pulleysthat are prethe size of the shaft or arbor, these varying 65 pared andsold on the market to be put on a with the different mechanism withwhich the shaft or arbor by a farmer or dairyman at a pulley is to beused. For use within the semidistance from any accessible machine -shopcylindrical metal bushings D D and about the or where tools are notconvenient except such shaft or arbor on which the pulley is to be asare ordinarily found with a farmers outfit. fixed Iprovidesemicylindrical wood bushings 7o The invention consists of the devicesand E E, having an exterior surface adapted to their combinations asherein described and fit closely and accurately in the semicylinclaimedor the equivalents thereof. drical metal bushings D D. The thickness Inthe drawings, Figure 1 is an end view of of these wood bushings, andconsequently a pulley having my improved construction, the size ordiameter of the interior space in- 75 parts being broken away to showinterior arclosed by these wood bushings when they are rangement. Fig. 2is a transverse section in position in the pulley and the members ofcentrally across its two members. Fig. 3 is a the pulley are clampedtogether, so as to form detail of a bushing employed in myimproved acomplete pulley, must be such as to fill the construction. Fig. 4: is adetail of a wood entire space between the metal bushingsand 8o bushingthat may be employed with my imthe shaft or arbor on which the pulley isto be proved construction, the bushing in Fig. 4- fixed. For thispurpose Ipurpose to provide being adapted to be employed with a shaft orwood bushings of diiferent thicknesses, and arbor of a smaller size thanthe shaft or arbor consequently having axial or shaft apertures withwhich the bushing shown in Fig. would of varying sizes, so as to adaptthem to fill the 85 be used. space between the varying sizes of theshaft My improved pulley is constructed in two and the metal bushings,and thus be adapted semicircular members A A, each consisting to assistproperly in holding the pulley seof a rim B and a cross-piece C, thecross-piece curely and properly in place. These bushbeing secured to therim at both its ends and ings are made of wood, because of the yield- 90near to the two extremities of the semicircuing character of thematerial under pressure lar rim. The construction of the cross-piecesand because of its capability to adhere firmly and the rim is such thatwhen the two meme to whatever it is pressed against, whereby bers of thepulley are placed opposite each such a bushing is especially welladapted to other in such manner as to makeia complete securely fastenthe pulley to the shaft or 95 pulley in form and substantially as shownin arbor.

Fig. 1 the cross-pieces will be opposite and For clamping the twomembers of the puladjacent to each other when the ends of the ley andtheir metal and Wood bushings serim approach very closely to or abutagainst curely to a shaft or arbor I provide'U-shaped each other. Thetwo cross-pieces are holclips F F, advisably made of round steel rod 10clowed out in semicircular form opposite each and having screw-threadedends on which are other about the axis of the pulley, and seminuts G G.These clips are so bent as to fit therefor through a cross-piece of onememthereby the thus-fastened member of the pulclosely on and about thesemicylindrical metal bushings D D, and their legs pass in apertures berof the pulley, and the nuts G G are adapted to turn on the legs of theclips against the cross-piece.

In use a Wood bushing E is placed on a shaft, for which purpose a woodbushing is selected that has a concave groove of the proper size toapproximately fit the shaft, and a metal bushing, D is then placed onand about the wood bushing,and around this is-placed one or more of theclips F, the legs of which are then inserted through the cross-piece ofone member of the pulley, placed on the opposite side of the shaft fromthe bend or yoke of the clip, the proper metal bushing and Wood bushinghaving been previously placed in the crosspiece about the shaft.Thereupon the nuts are turned down against the cross-piece, and

ley is held securely in place on the shaft. The other member of thepulley is placed in position on the shaft, the legs of a clip around thebushings in the first-secured member being inserted through thecross-piece of this second member and the member being secured in placeby turning the nuts down on the legs I of the clip or clips. It will benoted that suitable semi-annular grooves or recesses H H are provided inthe concave inner surface of the cross-pieces for the reception thereinof the clips F F.

What I claim as my invention is A pulley, comprising two semicircularcoinplementary members each composed of a rim, a cross-piecesubstantially diametrical of the rim and connecting the extremities ofthe rim the cross-piece having a concave axial recess, ametalsemicylindrical bushing of unvarying size fitting into the axial recessof the cross-piece, and a Wood semicylindrical bushing fitting into themetal bushing, and also U-shaped clips let into the cross-piece of onemember about its metal and wood bushings, the legs of the clipsextending through the cross-piece of the complementary member, and nutson the legs of the clips adapted to turn against the cross-piece of thecomplementary member.

In testimony whereof I affix my signature in presence of two Witnesses.

WILLIAM E. PENN.

- Witnesses:

L. F. ANDERSON, ORIN K. WIN EK.

